Great Seal to Atlantis

"This room was built by the Isu to house something else—these thrones were once just thrones. Now they contain my simulations."

―Aletheia to Kassandra, c. 422 BCE.

Great Seal to Atlantis

The Great Seal to Atlantis was a chamber room which connected the Gateway to the Lost City to the Isu city of Atlantis. It once served as a throne room to the Atlantean rulers but was subsequently abandoned following the Great Catastrophe.

History

During the Peloponnesian War, the chamber room was unlocked by the misthios Kassandra, who had been given the title of the Keeper by Aletheia as the wielder of the Staff of Hermes Trismegistus. Aletheia modified the chamber room to serve as gateways to the simulation trials of Elysium, the Underworld, and Atlantis, which Kassandra had to complete in order to master the Staff's powers.

In 2018, the Assassin Layla Hassan, having relived the memories of Kassandra and obtained the Staff from her, was able to unlock the Great Seal and gain access to the room herself. Her colleague Victoria Bibeau subsequently followed her in and, despite Layla's protests, insisted on remaining to monitor Layla's condition while she relived Kassandra's memories of the trials.

In the midst of these trials, Abstergo Industries was able to track down Layla's location under Thera. They sent a team of Sigma agents to eliminate Layla in the chamber room but they were killed except for a single operative, who was let go by Layla so that he could warn his superiors.

At the end of the trial in the Atlantis simulation, Layla was found by the Master Templar and Sigma Team leader Juhani Otso Berg, whom she correctly identified as "the Interloper" that had been tapping into the Assassins' communications and tracking their whereabouts. After a fight in which Layla defeated Berg with the Staff of Hermes, she crippled the Templar by piercing his back with the tip of the spear. Layla subsequently contacted the Altaïr II's crew to request a pickup for herself, Berg, and the body of Victoria, whom Layla had inadvertently killed earlier under the Staff and the Bleeding Effect's influence.

Gallery

• 
  Kassandra and Aletheia inside the Great Seal
• 
  Layla outside the entrance to the Great Seal
• 
  Layla and Berg facing off inside the Great Seal

Appearances

• Assassin's Creed: Odyssey (mentioned only)
  • The Fate of Atlantis: Fields of Elysium (first appearance)
  • The Fate of Atlantis: Torment of Hades
  • The Fate of Atlantis: Judgment of Atlantis
• Assassin's Creed: Blade of Shao Jun (flashback only)